general problems of the 2008 Cadillac CTS

28 problems related to electrical system have been reported for the 2008 Cadillac CTS. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2008 Cadillac CTS based on all problems reported for the 2008 CTS.

1 Electrical System problem

Failure Date: 05/28/2025

The recall performed on this vehicle were not performed. They played a [xxx] man made him get athe recall performed on this vehicle we’re not performed. They played a [xxx] man made him get a timing chain for morris Cadillac. I have several receipts from the vehicle being serviced because of the faulty windshield washer heater system that was supposed to be disabled caused an electrical short in the vehicle because it was not properly sealed water got in the wires and caused the computer to be fried this happened before the car still only has 67,000 miles and they won’t even take it in. The car stopped in the middle of the road almost killing everybody. I’ve had several technicians explain that it’s because of the faulty. Recall that they did not fix that is still exposed. Maybe they had a worker that was fired in 2017. Information redacted pursuant to the freedom of information act (foia), 5 u. S. C. 552(b)(6).

2 Electrical System problem

Failure Date: 06/01/2024

Vehicle purchase statement – top tier auto I, [xxx] , purchased a vehicle from top tier auto on [xxx]. The vehicle details are as follows: VIN: [xxx] warranty: 30-day coverage for the transmission and engine after owning the vehicle for only 15 minutes, I entered the freeway, and the car began to shake violently. Shortly after, a gentleman driving behind me alerted me that sparks and fire were falling from beneath the car. I immediately pulled over, just before the engine burst into flames. The columbus police department responded to the scene and had to extinguish the fire. This incident occurred within minutes of purchasing the vehicle, despite the supposed 30-day warranty covering the transmission and engine. Information redacted pursuant to the freedom of information act (foia), 5 u. S. C. 552(b)(6).

3 Electrical System problem

Failure Date: 02/25/2024

Ever since I purchased this 2008 Cts vehicle, I have dumped thousands of dollars to repair the vehicle even after the "recall repairs". Problems persist and the car has become more dangerous than ever. The vehicle had inspected by the dealership a number of times the first 5 years of ownership the first 3, listed below, were the replaced recalls from dealership, the rest are known safety issues that gm denies to admit to faults and recalls. *ignition starter replacement (still have starter failure issues after 2 repairs from gm) *washer fluid warmer removal (they just snipped the wires and removed the component but left hot wires exposed in vehicle) *motherboard ecm replacement recall(ecm is still faulty and has caused dozens of electrical issues. **************** battery drains over night. On my 6th battery (just bought new one 3 days ago) gauge cluster never recalibrated and is completely disabled. Don't know how fast im going how much gas or any other info related to. Sunroof constantly leaking, flooding vehicle and destroying the electrical components which fried many relays including the door lock and power window components vehicle refuses to turn but cranks on fuel often will not allow a fill up ecm throwing irrelevant codes headlight failure due to seal defect that allows moisture into headlight casing frequent oil loss. 2018: vehicle engine failure whilst driving on freeway with zero warning nearly causing a fatal crash. Purchased new alternator (shade tree auto in san clemente) and had to pay 2000 for tow and alternator transmission failure and near miss collision into another vehicle on a steep incline road I have taken this vehicle to a multitude of repair shops and auto supply to get a diagnosis. Even the dealership didn't have any answers. Now I am out of a car. And money. These issues had been confirmed by rorick Cadillac, shade tree auto, oreily, s and s auto, auto zone.

4 Electrical System problem

Failure Date: 07/18/2023

Car went crazy one day while behind the wheel everything malfunctioned then car shut off and won't start again. I could of easily got into an accident had there been any other vehicles around. Kids were scared. Codes come up as u0100,u0140,u0101,c0242,b0081-0f,b0081-71,b1370-01,b1370-06,u0155-00,u0170-00,p0856-00.

5 Electrical System problem

Failure Date: 02/10/2023

I was pulled over by the police because my 2008 Cadillac Cts license plate lights were not working and my rear brake lights were not working. These light failures were caused by a known design flaw with the wiring harness in the trunk lid near the right trunk lid hinge in where the wires inside the harness that go to the brake lights break in half after repeated opening and closing of the trunk lid because of the poor design of the wiring harness and it’s mounting brackets. There should have been a safety recall from gm as I could have been killed if a car in back of me did not stop because my brake lights were not going on when I would step on my cars brake peddle! now the car dealership service center wants to charge me $335. 00 to replace the broken wires that were caused by gm/Cadillac’s poor and unsafe design of this wiring harness. Regards jerry kopec.

6 Electrical System problem

Failure Date: 03/15/2021

After it rains water leaks from sunroof (not sure) down onto floorboard near the petal. And also into trunk. Electrical device inside car does not open trunk even after having it repaired.

7 Electrical System problem

Failure Date: 05/17/2019

While driving maybe 6 minutes my center console display would no longer function preventing me from being able to control the radio or air, which both remained functioning and the air bag light came on at the same time. The radio no longer plays but the air still blows. At the time this happened I was driving on a paved road at night going approx. 50 mph.

8 Electrical System problem

Failure Date: 07/01/2018

Tl the contact owns a 2008 Cadillac Cts. While the vehicle was stationary, the electrical system failed and the control panel became inoperative. In addition, the power steering failed and the steering wheel was extremely difficult to turn left or right. Kuni Chevrolet Cadillac (2449 fulton avenue, sacramento, California 95825, (916) 538-7217) diagnosed that the power steering pump was faulty and needed to be replaced. The vehicle was not repaired. The manufacturer was made aware of the failure and stated that there was no recall for the failures. The failure mileage was approximately 98,000.

9 Electrical System problem

Failure Date: 01/06/2018

My car has been in the shop due to engine issues, now that engine is replaced I'm seeing stabilitrak, service ac, and brake assist lights appear. Also when driving the speedometer is not engaged and car won't shift gears. Codes will not appear when hooked up to diagnostic reader and their is moisture that gets inside my car through the sunroof.

10 Electrical System problem

Failure Date: 08/29/2017

Our vehicle was stationary in the driveway of our home. In the middle of the night the vehicle caught on fire and exploded multiple times. Fire report/investigation list cause as unknown.

11 Electrical System problem

Failure Date: 07/31/2017

The vehicle will stall while cruising to a stop light, while at idle and sometime while accelerating. I've read a lot of posts online about this issue but no one has a solution. I got stranded on the highway in the middle lane once too. Gm will not do anything about it. The vehicle is in the shop right now and my diagnosis fee its over $750 and there is still no resolution for this issue!!! this issue is an ongoing issue for years now!!!.

12 Electrical System problem

Failure Date: 07/22/2017

Passenger side rear window rolls down on its own in rain, car wash. Sunroof has loud wind noise. Window goes down while on and driving.

13 Electrical System problem

Failure Date: 03/15/2017

Randomly when I go to start my vehicle it won't start but the battery is good,which leaves me stranded . . . . And also randomly while driving the traction control lights up saying traction control off along with every light in the dash displayed and making the chiming sound. It reduces the engine power suddenly while at a high speed causing me to swerve in freeway traffic.

14 Electrical System problem

Failure Date: 06/04/2016

My sunroof drain is often clogged resulting in the interior being soaked during slight or heavy rain fall. Maintenance has been done several times to no avail. Also whenever the weather is warm outside, the back doors will not unlock from the outside or when exiting the car. I always have to manually lock the doors upon leaving the vehicle. These problems have been virtually present since the car was purchased and have become a nightmare. The water log inside the vehicle almost always happen when the car is stationary.

15 Electrical System problem

Failure Date: 05/25/2016

The d/s door will not unlock or open from the outside. Read numerous complaints on same issue and no recall issued.

16 Electrical System problem

Failure Date: 03/02/2015

Intermittently, the door locks do not lock/unlock with the remote. The safety concern is ingress/egress from the vehicle.

17 Electrical System problem

Failure Date: 03/02/2015

2008 Cadillac Cts. Consumer writes in regards to recall parts are unavailable to complete recall #14v394000.

18 Electrical System problem

Failure Date: 12/18/2014

The contact owns a 2008 Cadillac Cts. The contact received a notification of NHTSA campaign number: 14v394000 (electrical system) however, the part to do the repair was unavailable. The contact stated that the manufacturer exceeded a reasonable amount of time for the recall repair. The manufacturer was made aware of the issue. The contact had not experienced a failure.

19 Electrical System problem

Failure Date: 12/02/2014

The contact owns a 2008 Cadillac Cts. The contact received a notification for NHTSA campaign id number: 14v394000 (electrical system) and stated that the part needed was unavailable to repair the vehicle. The dealer was unable to inform when the part would become available. The manufacturer was not notified of the issue. The contact had not experienced a failure.

20 Electrical System problem

Failure Date: 11/06/2014

The contact owns a 2008 Cadillac Cts. The contact received a notification for NHTSA campaign number: 14v394000 (electrical system) and stated that the part needed was unavailable to perform the recall repair. The manufacturer was not notified of the issue. The contact had not experienced a failure.

21 Electrical System problem

Failure Date: 11/05/2014

Tl- the contact owns a 2008 Cadillac Cts. The contact received a notification for recall NHTSA campaign number: 14v394000 (electrical system). However, the parts needed were unavailable. The dealer was uncertain when the parts would become available. The manufacturer had not been notified of the problem. The contact had not experienced a failure. Pam.

22 Electrical System problem

Failure Date: 09/15/2014

The contact owns a 2008 Cadillac Cts. The contact received a recall notification for NHTSA campaign number: 14v394000 (electrical system); however, the part needed to repair the vehicle was unavailable. The contact stated that the manufacturer exceeded a reasonable amount of time for the recall repair. The manufacturer was notified. The contact had not experienced a failure.

23 Electrical System problem

Failure Date: 06/15/2014

The contact owns a 2008 Cadillac Cts. The contact stated that the vehicle stalled several times intermittently. While traveling on a major highway at an unknown speed, all of the instrument panel indicators illuminated each time the vehicle stalled. The vehicle was able to be restarted after several attempts. The key would also not turn into the on position on several occasions. The windows would roll down on their own on the rear driver and rear passenger side. The vehicle was taken to an authorized dealer more than once, but the dealer was not able to replicate or diagnose the failures. The manufacturer was notified. The vehicle was not repaired. The approximate failure mileage was 72,000.

24 Electrical System problem

Failure Date: 09/01/2013

For quite some time now I've been experiencing problems with locking/unlocking rear doors. Rear doors will not lock/unlock with keyless entry or front/passenger door pads. I have to manually cling to back to unlock doors. Have purchased several batteries for keyless remote. Due to doors remaining unlocked I cannot auto start vehicle unless I manually lock doors myself. Also computer is not recognizing keyless remote. I have purchased several batteries within the past 8 months. Car always tell me keyless remote not detected. To crank car I have to put keyless remote in middle of console to ignite. Both issues are very annoying and unsafe.

25 Electrical System problem

Failure Date: 01/24/2012

The contact owns a 2008 Cadillac Cts. The contact stated that the entire center console malfunctioned and all of the electrical components were no longer functional. The contact took the vehicle to the dealer to have the center console replaced. The repair did not remedy the issue. The failure mileage was 19,000.

26 Electrical System problem

Failure Date: 09/21/2011

There is a water leak occurring from the sunroof. The sunroof drains continuously get clogged. In result, the interior of the car gets extremely wet. This occurred on September 21, 2011 then has now happened in the same exact drain on may 05, 2015. When I started the car after discovering the water for the second time the passenger rear window rolled down on its own and will no longer operate. Who knows what other electrical issues will occur? does this put me at harm? also, now with all the moisture inside the car, this is ruining the interior of my car! the worst part is that due to the moisture in the vehicle the inside of the windows fog up while driving. This is definitely putting me and other drivers on the road in harms way because it is interrupting my visibility while driving and I don't feel safe when this occurs. I don't understand how the drains are getting clogged, I don't park under trees and my car is covered almost year round. This is not acceptable and I feel like there needs to be change.

27 Electrical System problem

Failure Date: 06/11/2010

The contact owns a 2008 Cadillac Cts. The contact stated he received notification of NHTSA campaign id number: 10v2400000 (electrical system). The contact was displeased with the remedy associated with the recall. He stated the manufacturer was offering a $100 reimbursement to disconnect the heated washer fluid and the contact stated the component cost much more than $100. The contact believed the remedy to be an unfair reimbursement. The failure and current mileages were approximately 25,000.

28 Electrical System problem

Failure Date: 06/10/2009

6 months ago the contacts 2008 cadilac Cts started jumping forward and stopping. 4 weeks ago the vehicle jerked forward again in traffic and hopped a curb. The vehicle investigated by a cadilac dealer that said nothinig was wrong with the vehicle. Updated 1/14/10 updated 01/15/10.


Other Electrical System related problems of the 2008 Cadillac CTS


CTS Service Bulletins
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CTS Defect Investigations